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/**
** @file vmtables.h
**
** @author CSCI-452 class of 20245
**
** @brief Predefined VM tables
*/
#ifndef VMTABLES_H_
#define VMTABLES_H_
#include <defs.h>
#include <types.h>
#include <vm.h>
#ifndef ASM_SRC
/*
** Initial page directory, for when the kernel is starting up
**
** we use large (4MB) pages here to allow us to use a one-level
** paging hierarchy; the kernel will create a new page table
** hierarchy once memory is initialized
*/
extern pde_t firstpdir[];
/*
** "Identity" page map table.
**
** This just maps the first 4MB of physical memory. It is initialized
** in vm_init().
*/
extern pte_t id_map[];
/*
** Kernel address mappings, present in every page table
*/
extern mapping_t kmap[];
extern const uint32_t n_kmap;
#endif /* !ASM_SRC */
#endif
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